Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/acorn/scsi/cumana_2.c |
| 3 | * |
| 4 | * Copyright (C) 1997-2005 Russell King |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * Changelog: |
| 11 | * 30-08-1997 RMK 0.0.0 Created, READONLY version. |
| 12 | * 22-01-1998 RMK 0.0.1 Updated to 2.1.80. |
| 13 | * 15-04-1998 RMK 0.0.1 Only do PIO if FAS216 will allow it. |
| 14 | * 02-05-1998 RMK 0.0.2 Updated & added DMA support. |
| 15 | * 27-06-1998 RMK Changed asm/delay.h to linux/delay.h |
| 16 | * 18-08-1998 RMK 0.0.3 Fixed synchronous transfer depth. |
| 17 | * 02-04-2000 RMK 0.0.4 Updated for new error handling code. |
| 18 | */ |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/blkdev.h> |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/string.h> |
| 23 | #include <linux/ioport.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <linux/proc_fs.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/dma-mapping.h> |
| 29 | |
| 30 | #include <asm/dma.h> |
| 31 | #include <asm/ecard.h> |
| 32 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <asm/pgtable.h> |
| 34 | |
| 35 | #include "../scsi.h" |
| 36 | #include <scsi/scsi_host.h> |
| 37 | #include "fas216.h" |
| 38 | #include "scsi.h" |
| 39 | |
| 40 | #include <scsi/scsicam.h> |
| 41 | |
| 42 | #define CUMANASCSI2_STATUS (0x0000) |
| 43 | #define STATUS_INT (1 << 0) |
| 44 | #define STATUS_DRQ (1 << 1) |
| 45 | #define STATUS_LATCHED (1 << 3) |
| 46 | |
| 47 | #define CUMANASCSI2_ALATCH (0x0014) |
| 48 | #define ALATCH_ENA_INT (3) |
| 49 | #define ALATCH_DIS_INT (2) |
| 50 | #define ALATCH_ENA_TERM (5) |
| 51 | #define ALATCH_DIS_TERM (4) |
| 52 | #define ALATCH_ENA_BIT32 (11) |
| 53 | #define ALATCH_DIS_BIT32 (10) |
| 54 | #define ALATCH_ENA_DMA (13) |
| 55 | #define ALATCH_DIS_DMA (12) |
| 56 | #define ALATCH_DMA_OUT (15) |
| 57 | #define ALATCH_DMA_IN (14) |
| 58 | |
| 59 | #define CUMANASCSI2_PSEUDODMA (0x0200) |
| 60 | |
| 61 | #define CUMANASCSI2_FAS216_OFFSET (0x0300) |
| 62 | #define CUMANASCSI2_FAS216_SHIFT 2 |
| 63 | |
| 64 | /* |
| 65 | * Version |
| 66 | */ |
| 67 | #define VERSION "1.00 (13/11/2002 2.5.47)" |
| 68 | |
| 69 | /* |
| 70 | * Use term=0,1,0,0,0 to turn terminators on/off |
| 71 | */ |
| 72 | static int term[MAX_ECARDS] = { 1, 1, 1, 1, 1, 1, 1, 1 }; |
| 73 | |
| 74 | #define NR_SG 256 |
| 75 | |
| 76 | struct cumanascsi2_info { |
| 77 | FAS216_Info info; |
| 78 | struct expansion_card *ec; |
| 79 | void __iomem *base; |
| 80 | unsigned int terms; /* Terminator state */ |
| 81 | struct scatterlist sg[NR_SG]; /* Scatter DMA list */ |
| 82 | }; |
| 83 | |
| 84 | #define CSTATUS_IRQ (1 << 0) |
| 85 | #define CSTATUS_DRQ (1 << 1) |
| 86 | |
| 87 | /* Prototype: void cumanascsi_2_irqenable(ec, irqnr) |
| 88 | * Purpose : Enable interrupts on Cumana SCSI 2 card |
| 89 | * Params : ec - expansion card structure |
| 90 | * : irqnr - interrupt number |
| 91 | */ |
| 92 | static void |
| 93 | cumanascsi_2_irqenable(struct expansion_card *ec, int irqnr) |
| 94 | { |
| 95 | struct cumanascsi2_info *info = ec->irq_data; |
| 96 | writeb(ALATCH_ENA_INT, info->base + CUMANASCSI2_ALATCH); |
| 97 | } |
| 98 | |
| 99 | /* Prototype: void cumanascsi_2_irqdisable(ec, irqnr) |
| 100 | * Purpose : Disable interrupts on Cumana SCSI 2 card |
| 101 | * Params : ec - expansion card structure |
| 102 | * : irqnr - interrupt number |
| 103 | */ |
| 104 | static void |
| 105 | cumanascsi_2_irqdisable(struct expansion_card *ec, int irqnr) |
| 106 | { |
| 107 | struct cumanascsi2_info *info = ec->irq_data; |
| 108 | writeb(ALATCH_DIS_INT, info->base + CUMANASCSI2_ALATCH); |
| 109 | } |
| 110 | |
| 111 | static const expansioncard_ops_t cumanascsi_2_ops = { |
| 112 | .irqenable = cumanascsi_2_irqenable, |
| 113 | .irqdisable = cumanascsi_2_irqdisable, |
| 114 | }; |
| 115 | |
| 116 | /* Prototype: void cumanascsi_2_terminator_ctl(host, on_off) |
| 117 | * Purpose : Turn the Cumana SCSI 2 terminators on or off |
| 118 | * Params : host - card to turn on/off |
| 119 | * : on_off - !0 to turn on, 0 to turn off |
| 120 | */ |
| 121 | static void |
| 122 | cumanascsi_2_terminator_ctl(struct Scsi_Host *host, int on_off) |
| 123 | { |
| 124 | struct cumanascsi2_info *info = (struct cumanascsi2_info *)host->hostdata; |
| 125 | |
| 126 | if (on_off) { |
| 127 | info->terms = 1; |
| 128 | writeb(ALATCH_ENA_TERM, info->base + CUMANASCSI2_ALATCH); |
| 129 | } else { |
| 130 | info->terms = 0; |
| 131 | writeb(ALATCH_DIS_TERM, info->base + CUMANASCSI2_ALATCH); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | /* Prototype: void cumanascsi_2_intr(irq, *dev_id, *regs) |
| 136 | * Purpose : handle interrupts from Cumana SCSI 2 card |
| 137 | * Params : irq - interrupt number |
| 138 | * dev_id - user-defined (Scsi_Host structure) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | */ |
| 140 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 141 | cumanascsi_2_intr(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | { |
| 143 | struct cumanascsi2_info *info = dev_id; |
| 144 | |
| 145 | return fas216_intr(&info->info); |
| 146 | } |
| 147 | |
| 148 | /* Prototype: fasdmatype_t cumanascsi_2_dma_setup(host, SCpnt, direction, min_type) |
| 149 | * Purpose : initialises DMA/PIO |
| 150 | * Params : host - host |
| 151 | * SCpnt - command |
| 152 | * direction - DMA on to/off of card |
| 153 | * min_type - minimum DMA support that we must have for this transfer |
| 154 | * Returns : type of transfer to be performed |
| 155 | */ |
| 156 | static fasdmatype_t |
Christoph Hellwig | 0a04137 | 2005-10-31 18:31:56 +0100 | [diff] [blame] | 157 | cumanascsi_2_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | fasdmadir_t direction, fasdmatype_t min_type) |
| 159 | { |
| 160 | struct cumanascsi2_info *info = (struct cumanascsi2_info *)host->hostdata; |
| 161 | struct device *dev = scsi_get_device(host); |
| 162 | int dmach = info->info.scsi.dma; |
| 163 | |
| 164 | writeb(ALATCH_DIS_DMA, info->base + CUMANASCSI2_ALATCH); |
| 165 | |
| 166 | if (dmach != NO_DMA && |
| 167 | (min_type == fasdma_real_all || SCp->this_residual >= 512)) { |
| 168 | int bufs, map_dir, dma_dir, alatch_dir; |
| 169 | |
| 170 | bufs = copy_SCp_to_sg(&info->sg[0], SCp, NR_SG); |
| 171 | |
| 172 | if (direction == DMA_OUT) |
| 173 | map_dir = DMA_TO_DEVICE, |
| 174 | dma_dir = DMA_MODE_WRITE, |
| 175 | alatch_dir = ALATCH_DMA_OUT; |
| 176 | else |
| 177 | map_dir = DMA_FROM_DEVICE, |
| 178 | dma_dir = DMA_MODE_READ, |
| 179 | alatch_dir = ALATCH_DMA_IN; |
| 180 | |
| 181 | dma_map_sg(dev, info->sg, bufs + 1, map_dir); |
| 182 | |
| 183 | disable_dma(dmach); |
| 184 | set_dma_sg(dmach, info->sg, bufs + 1); |
| 185 | writeb(alatch_dir, info->base + CUMANASCSI2_ALATCH); |
| 186 | set_dma_mode(dmach, dma_dir); |
| 187 | enable_dma(dmach); |
| 188 | writeb(ALATCH_ENA_DMA, info->base + CUMANASCSI2_ALATCH); |
| 189 | writeb(ALATCH_DIS_BIT32, info->base + CUMANASCSI2_ALATCH); |
| 190 | return fasdma_real_all; |
| 191 | } |
| 192 | |
| 193 | /* |
| 194 | * If we're not doing DMA, |
| 195 | * we'll do pseudo DMA |
| 196 | */ |
| 197 | return fasdma_pio; |
| 198 | } |
| 199 | |
| 200 | /* |
| 201 | * Prototype: void cumanascsi_2_dma_pseudo(host, SCpnt, direction, transfer) |
| 202 | * Purpose : handles pseudo DMA |
| 203 | * Params : host - host |
| 204 | * SCpnt - command |
| 205 | * direction - DMA on to/off of card |
| 206 | * transfer - minimum number of bytes we expect to transfer |
| 207 | */ |
| 208 | static void |
Christoph Hellwig | 0a04137 | 2005-10-31 18:31:56 +0100 | [diff] [blame] | 209 | cumanascsi_2_dma_pseudo(struct Scsi_Host *host, struct scsi_pointer *SCp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | fasdmadir_t direction, int transfer) |
| 211 | { |
| 212 | struct cumanascsi2_info *info = (struct cumanascsi2_info *)host->hostdata; |
| 213 | unsigned int length; |
| 214 | unsigned char *addr; |
| 215 | |
| 216 | length = SCp->this_residual; |
| 217 | addr = SCp->ptr; |
| 218 | |
| 219 | if (direction == DMA_OUT) |
| 220 | #if 0 |
| 221 | while (length > 1) { |
| 222 | unsigned long word; |
| 223 | unsigned int status = readb(info->base + CUMANASCSI2_STATUS); |
| 224 | |
| 225 | if (status & STATUS_INT) |
| 226 | goto end; |
| 227 | |
| 228 | if (!(status & STATUS_DRQ)) |
| 229 | continue; |
| 230 | |
| 231 | word = *addr | *(addr + 1) << 8; |
| 232 | writew(word, info->base + CUMANASCSI2_PSEUDODMA); |
| 233 | addr += 2; |
| 234 | length -= 2; |
| 235 | } |
| 236 | #else |
| 237 | printk ("PSEUDO_OUT???\n"); |
| 238 | #endif |
| 239 | else { |
| 240 | if (transfer && (transfer & 255)) { |
| 241 | while (length >= 256) { |
| 242 | unsigned int status = readb(info->base + CUMANASCSI2_STATUS); |
| 243 | |
| 244 | if (status & STATUS_INT) |
| 245 | return; |
| 246 | |
| 247 | if (!(status & STATUS_DRQ)) |
| 248 | continue; |
| 249 | |
| 250 | readsw(info->base + CUMANASCSI2_PSEUDODMA, |
| 251 | addr, 256 >> 1); |
| 252 | addr += 256; |
| 253 | length -= 256; |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | while (length > 0) { |
| 258 | unsigned long word; |
| 259 | unsigned int status = readb(info->base + CUMANASCSI2_STATUS); |
| 260 | |
| 261 | if (status & STATUS_INT) |
| 262 | return; |
| 263 | |
| 264 | if (!(status & STATUS_DRQ)) |
| 265 | continue; |
| 266 | |
| 267 | word = readw(info->base + CUMANASCSI2_PSEUDODMA); |
| 268 | *addr++ = word; |
| 269 | if (--length > 0) { |
| 270 | *addr++ = word >> 8; |
| 271 | length --; |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | /* Prototype: int cumanascsi_2_dma_stop(host, SCpnt) |
| 278 | * Purpose : stops DMA/PIO |
| 279 | * Params : host - host |
| 280 | * SCpnt - command |
| 281 | */ |
| 282 | static void |
Christoph Hellwig | 0a04137 | 2005-10-31 18:31:56 +0100 | [diff] [blame] | 283 | cumanascsi_2_dma_stop(struct Scsi_Host *host, struct scsi_pointer *SCp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | { |
| 285 | struct cumanascsi2_info *info = (struct cumanascsi2_info *)host->hostdata; |
| 286 | if (info->info.scsi.dma != NO_DMA) { |
| 287 | writeb(ALATCH_DIS_DMA, info->base + CUMANASCSI2_ALATCH); |
| 288 | disable_dma(info->info.scsi.dma); |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | /* Prototype: const char *cumanascsi_2_info(struct Scsi_Host * host) |
| 293 | * Purpose : returns a descriptive string about this interface, |
| 294 | * Params : host - driver host structure to return info for. |
| 295 | * Returns : pointer to a static buffer containing null terminated string. |
| 296 | */ |
| 297 | const char *cumanascsi_2_info(struct Scsi_Host *host) |
| 298 | { |
| 299 | struct cumanascsi2_info *info = (struct cumanascsi2_info *)host->hostdata; |
| 300 | static char string[150]; |
| 301 | |
| 302 | sprintf(string, "%s (%s) in slot %d v%s terminators o%s", |
| 303 | host->hostt->name, info->info.scsi.type, info->ec->slot_no, |
| 304 | VERSION, info->terms ? "n" : "ff"); |
| 305 | |
| 306 | return string; |
| 307 | } |
| 308 | |
| 309 | /* Prototype: int cumanascsi_2_set_proc_info(struct Scsi_Host *host, char *buffer, int length) |
| 310 | * Purpose : Set a driver specific function |
| 311 | * Params : host - host to setup |
| 312 | * : buffer - buffer containing string describing operation |
| 313 | * : length - length of string |
| 314 | * Returns : -EINVAL, or 0 |
| 315 | */ |
| 316 | static int |
| 317 | cumanascsi_2_set_proc_info(struct Scsi_Host *host, char *buffer, int length) |
| 318 | { |
| 319 | int ret = length; |
| 320 | |
| 321 | if (length >= 11 && strcmp(buffer, "CUMANASCSI2") == 0) { |
| 322 | buffer += 11; |
| 323 | length -= 11; |
| 324 | |
| 325 | if (length >= 5 && strncmp(buffer, "term=", 5) == 0) { |
| 326 | if (buffer[5] == '1') |
| 327 | cumanascsi_2_terminator_ctl(host, 1); |
| 328 | else if (buffer[5] == '0') |
| 329 | cumanascsi_2_terminator_ctl(host, 0); |
| 330 | else |
| 331 | ret = -EINVAL; |
| 332 | } else |
| 333 | ret = -EINVAL; |
| 334 | } else |
| 335 | ret = -EINVAL; |
| 336 | |
| 337 | return ret; |
| 338 | } |
| 339 | |
| 340 | /* Prototype: int cumanascsi_2_proc_info(char *buffer, char **start, off_t offset, |
| 341 | * int length, int host_no, int inout) |
| 342 | * Purpose : Return information about the driver to a user process accessing |
| 343 | * the /proc filesystem. |
| 344 | * Params : buffer - a buffer to write information to |
| 345 | * start - a pointer into this buffer set by this routine to the start |
| 346 | * of the required information. |
| 347 | * offset - offset into information that we have read upto. |
| 348 | * length - length of buffer |
| 349 | * host_no - host number to return information for |
| 350 | * inout - 0 for reading, 1 for writing. |
| 351 | * Returns : length of data written to buffer. |
| 352 | */ |
| 353 | int cumanascsi_2_proc_info (struct Scsi_Host *host, char *buffer, char **start, off_t offset, |
| 354 | int length, int inout) |
| 355 | { |
| 356 | struct cumanascsi2_info *info; |
| 357 | char *p = buffer; |
| 358 | int pos; |
| 359 | |
| 360 | if (inout == 1) |
| 361 | return cumanascsi_2_set_proc_info(host, buffer, length); |
| 362 | |
| 363 | info = (struct cumanascsi2_info *)host->hostdata; |
| 364 | |
| 365 | p += sprintf(p, "Cumana SCSI II driver v%s\n", VERSION); |
| 366 | p += fas216_print_host(&info->info, p); |
| 367 | p += sprintf(p, "Term : o%s\n", |
| 368 | info->terms ? "n" : "ff"); |
| 369 | |
| 370 | p += fas216_print_stats(&info->info, p); |
| 371 | p += fas216_print_devices(&info->info, p); |
| 372 | |
| 373 | *start = buffer + offset; |
| 374 | pos = p - buffer - offset; |
| 375 | if (pos > length) |
| 376 | pos = length; |
| 377 | |
| 378 | return pos; |
| 379 | } |
| 380 | |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 381 | static struct scsi_host_template cumanascsi2_template = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | .module = THIS_MODULE, |
| 383 | .proc_info = cumanascsi_2_proc_info, |
| 384 | .name = "Cumana SCSI II", |
| 385 | .info = cumanascsi_2_info, |
| 386 | .queuecommand = fas216_queue_command, |
| 387 | .eh_host_reset_handler = fas216_eh_host_reset, |
| 388 | .eh_bus_reset_handler = fas216_eh_bus_reset, |
| 389 | .eh_device_reset_handler = fas216_eh_device_reset, |
| 390 | .eh_abort_handler = fas216_eh_abort, |
| 391 | .can_queue = 1, |
| 392 | .this_id = 7, |
| 393 | .sg_tablesize = SG_ALL, |
| 394 | .cmd_per_lun = 1, |
| 395 | .use_clustering = DISABLE_CLUSTERING, |
| 396 | .proc_name = "cumanascsi2", |
| 397 | }; |
| 398 | |
| 399 | static int __devinit |
| 400 | cumanascsi2_probe(struct expansion_card *ec, const struct ecard_id *id) |
| 401 | { |
| 402 | struct Scsi_Host *host; |
| 403 | struct cumanascsi2_info *info; |
| 404 | unsigned long resbase, reslen; |
| 405 | void __iomem *base; |
| 406 | int ret; |
| 407 | |
| 408 | ret = ecard_request_resources(ec); |
| 409 | if (ret) |
| 410 | goto out; |
| 411 | |
| 412 | resbase = ecard_resource_start(ec, ECARD_RES_MEMC); |
| 413 | reslen = ecard_resource_len(ec, ECARD_RES_MEMC); |
| 414 | base = ioremap(resbase, reslen); |
| 415 | if (!base) { |
| 416 | ret = -ENOMEM; |
| 417 | goto out_region; |
| 418 | } |
| 419 | |
| 420 | host = scsi_host_alloc(&cumanascsi2_template, |
| 421 | sizeof(struct cumanascsi2_info)); |
| 422 | if (!host) { |
| 423 | ret = -ENOMEM; |
| 424 | goto out_unmap; |
| 425 | } |
| 426 | |
| 427 | ecard_set_drvdata(ec, host); |
| 428 | |
| 429 | info = (struct cumanascsi2_info *)host->hostdata; |
| 430 | info->ec = ec; |
| 431 | info->base = base; |
| 432 | |
| 433 | cumanascsi_2_terminator_ctl(host, term[ec->slot_no]); |
| 434 | |
| 435 | info->info.scsi.io_base = base + CUMANASCSI2_FAS216_OFFSET; |
| 436 | info->info.scsi.io_shift = CUMANASCSI2_FAS216_SHIFT; |
| 437 | info->info.scsi.irq = ec->irq; |
| 438 | info->info.scsi.dma = ec->dma; |
| 439 | info->info.ifcfg.clockrate = 40; /* MHz */ |
| 440 | info->info.ifcfg.select_timeout = 255; |
| 441 | info->info.ifcfg.asyncperiod = 200; /* ns */ |
| 442 | info->info.ifcfg.sync_max_depth = 7; |
| 443 | info->info.ifcfg.cntl3 = CNTL3_BS8 | CNTL3_FASTSCSI | CNTL3_FASTCLK; |
| 444 | info->info.ifcfg.disconnect_ok = 1; |
| 445 | info->info.ifcfg.wide_max_size = 0; |
| 446 | info->info.ifcfg.capabilities = FASCAP_PSEUDODMA; |
| 447 | info->info.dma.setup = cumanascsi_2_dma_setup; |
| 448 | info->info.dma.pseudo = cumanascsi_2_dma_pseudo; |
| 449 | info->info.dma.stop = cumanascsi_2_dma_stop; |
| 450 | |
| 451 | ec->irqaddr = info->base + CUMANASCSI2_STATUS; |
| 452 | ec->irqmask = STATUS_INT; |
| 453 | ec->irq_data = info; |
| 454 | ec->ops = &cumanascsi_2_ops; |
| 455 | |
| 456 | ret = fas216_init(host); |
| 457 | if (ret) |
| 458 | goto out_free; |
| 459 | |
| 460 | ret = request_irq(ec->irq, cumanascsi_2_intr, |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 461 | IRQF_DISABLED, "cumanascsi2", info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | if (ret) { |
| 463 | printk("scsi%d: IRQ%d not free: %d\n", |
| 464 | host->host_no, ec->irq, ret); |
| 465 | goto out_release; |
| 466 | } |
| 467 | |
| 468 | if (info->info.scsi.dma != NO_DMA) { |
| 469 | if (request_dma(info->info.scsi.dma, "cumanascsi2")) { |
| 470 | printk("scsi%d: DMA%d not free, using PIO\n", |
| 471 | host->host_no, info->info.scsi.dma); |
| 472 | info->info.scsi.dma = NO_DMA; |
| 473 | } else { |
| 474 | set_dma_speed(info->info.scsi.dma, 180); |
| 475 | info->info.ifcfg.capabilities |= FASCAP_DMA; |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | ret = fas216_add(host, &ec->dev); |
| 480 | if (ret == 0) |
| 481 | goto out; |
| 482 | |
| 483 | if (info->info.scsi.dma != NO_DMA) |
| 484 | free_dma(info->info.scsi.dma); |
| 485 | free_irq(ec->irq, host); |
| 486 | |
| 487 | out_release: |
| 488 | fas216_release(host); |
| 489 | |
| 490 | out_free: |
| 491 | scsi_host_put(host); |
| 492 | |
| 493 | out_unmap: |
| 494 | iounmap(base); |
| 495 | |
| 496 | out_region: |
| 497 | ecard_release_resources(ec); |
| 498 | |
| 499 | out: |
| 500 | return ret; |
| 501 | } |
| 502 | |
| 503 | static void __devexit cumanascsi2_remove(struct expansion_card *ec) |
| 504 | { |
| 505 | struct Scsi_Host *host = ecard_get_drvdata(ec); |
| 506 | struct cumanascsi2_info *info = (struct cumanascsi2_info *)host->hostdata; |
| 507 | |
| 508 | ecard_set_drvdata(ec, NULL); |
| 509 | fas216_remove(host); |
| 510 | |
| 511 | if (info->info.scsi.dma != NO_DMA) |
| 512 | free_dma(info->info.scsi.dma); |
| 513 | free_irq(ec->irq, info); |
| 514 | |
| 515 | iounmap(info->base); |
| 516 | |
| 517 | fas216_release(host); |
| 518 | scsi_host_put(host); |
| 519 | ecard_release_resources(ec); |
| 520 | } |
| 521 | |
| 522 | static const struct ecard_id cumanascsi2_cids[] = { |
| 523 | { MANU_CUMANA, PROD_CUMANA_SCSI_2 }, |
| 524 | { 0xffff, 0xffff }, |
| 525 | }; |
| 526 | |
| 527 | static struct ecard_driver cumanascsi2_driver = { |
| 528 | .probe = cumanascsi2_probe, |
| 529 | .remove = __devexit_p(cumanascsi2_remove), |
| 530 | .id_table = cumanascsi2_cids, |
| 531 | .drv = { |
| 532 | .name = "cumanascsi2", |
| 533 | }, |
| 534 | }; |
| 535 | |
| 536 | static int __init cumanascsi2_init(void) |
| 537 | { |
| 538 | return ecard_register_driver(&cumanascsi2_driver); |
| 539 | } |
| 540 | |
| 541 | static void __exit cumanascsi2_exit(void) |
| 542 | { |
| 543 | ecard_remove_driver(&cumanascsi2_driver); |
| 544 | } |
| 545 | |
| 546 | module_init(cumanascsi2_init); |
| 547 | module_exit(cumanascsi2_exit); |
| 548 | |
| 549 | MODULE_AUTHOR("Russell King"); |
| 550 | MODULE_DESCRIPTION("Cumana SCSI-2 driver for Acorn machines"); |
Rusty Russell | 8d3b33f | 2006-03-25 03:07:05 -0800 | [diff] [blame] | 551 | module_param_array(term, int, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | MODULE_PARM_DESC(term, "SCSI bus termination"); |
| 553 | MODULE_LICENSE("GPL"); |